Question

Find the value of x ​

Answer 1

Step-by-step explanation:

$7x = 140$

$x = 140 \div 7$

$x = 20$

ANSWER.

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Answer 2

Answer:

Let 3rd angle of the triangular be y

140+y=180(linear pair)

y=180-140

y=40

Now,

3x+4x+y=180 (ASP)

3x+4x+40=180

7x+40=180

7x=180-40

7x=140

x=140/7

x=20

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